I actually find that doing a straight to base tek is operationally easy enough and provides material of sufficient purity that it can be used directly with (in my companions' experiences) no major ill side effects, IIRC on GCMS it was 95% or more pure.
First, use fresh MHRB if possible, and store raw bark in the dark, in sealed containers to limit air oxidation.
Grind up MHRB in a coffee grinder, note MHRB has about 1% by weight DMT in it.
Prepare a solution of sodium or potassium hydroxide in water.
The ratio I use is 1 gram bark to 1 gram NaOH to 15-20 mL water.
Add the bark to the alkali solution: it turns into a purple-black mucky mess.
Mix this solution gently for 20 min to an hour, more is not needed in general.
Do this in a warm water bath (~35C) to encourage the alkaloid to be liberated.
Now, begin adding portions of nonpolar solvent to the muck (Less is more, as long as you have a visible layer, try between 50 and 100mL), and gently stir/agitate it for several minutes. The solvent will pick up a yellowish hue, this is good. You do not want to use too much solvent unless you can remove it easily by distillation or evaporation.
Allow it to sit and form a nice, distinct layer above the muck. Then, using a turkey baster or pipette, remove as much of the layer as possible. If some mucky water comes along it's OK.
Now repeat this process between 4 and 10 more times. Generally speaking 5 should be good. You will end up with a volume of solvent with some muck in the bottom.
This can be cleaned up by adding small amounts of plain cold water and then removing the bottom layer via pipette/baster. Multiple washes are done until no more colour is removed.
Then, to remove excess water, magnesium sulphate (Epsom Salts) which has been spread on a baking tray and baked for several hours at 300-400F, is cooled, ground, and stored in a sealed labeled container. This is used to absorb excess water by adding a teaspoon or so to the solvent solution, and stirred.
Finally the solvent is filtered, and put in a sealed glass container in a deep freezer (ideally -20C). After 12-24h, you will see precipitation of white to slightly yellow DMT freebase. Pour the excess solvent off (can be used to extract again if necessary) and let the DMT dry in a cool, dark, well ventilated area. Store in a sealed labeled glass container.
know that smoking is harder than extracting
Smoking needs a glass pipe (hell a meth or crack pipe will work). And a lighter (torch is best). It takes maybe 2 minutes total from empty pipe to exhaling DMT smoke/vapour.
Extraction needs solvents, corrosive alkali, vessels, seperation tools, drying agents, freeze precipitation... and at least an hour or two of time.
Also, there is an important distinction to be made. Usually, the
plants make the DMT, and we just extract it. But it is also possible to use chemistry to make DMT, too - just much harder.
